Glass-cutting frame



UNITED STATES PATENT OFFIoE.

FRANCIS VOERNER AND SAMUEL E. NIES, OF READING, PENNSYLVANIA.

GLASS-CUTTING FRAME.

SPECIFICATION forming part of Letters Patent No. 342,159, dated May 18,1886.

Application filed February .23, 1836. Serial No. 192,909. (No model.)

To all whom it may concern:

Be it known that we, FRANCIS \VOERNER and SAMUEL E. NIEs, both citizensof the United States, residing in Reading, Berks county, Pennsylvania,have invented certain Improvements in Glass Cutting Frames, of which thefollowing is a specification.

The object of this invention is to construct a glass-cutting frame ortable having a sliding guided straight-edge capable of being locked indifferent positions, thus insuring the accurate cutting of the glass, asfully described hereinafter.

In the accompanying drawings, Figure 1 is perspective View of thisimproved frame or table. Fig. 2 isasectional view on the line 1 2, Fig.1, drawn to an enlarged scale. Fig. 3 is a sectional view on the line 12, Fig. 2, drawn to a still larger scale; and Fig. aisaplan view ofapart ofoneofthe guide-pieces of the frame.

A represents a straight-edge having crosspieces a a at each end providedwith ribs (0, which slide in longitudinal ways I) b on each side of theframe or cutting-table B, said crosspieces having each a widebearing-surface on the frame tending to keep the straight-edge at rightangles at all times with the length of the frame. A rod, D, having itsbearings in the straightedge A, has at each end projections or pawls (Zd, which pass downward through slots in the straight-edge and areadapted to engage with ratchet-racks E E, (see Fig. 3,) secured to theframe B. These pawls tend to hold the straight-edge firm and prevent itfrom slipping when cutting the glass. The racks E E are fixed inguide-pieces F F, which are secured to or form part of the frame B oneach side.

The rod D hasathumb-lever, f, fixedthereto, and under thislever is aspring, 9, tending to keep the pawls d d in gear with the racks E E.

When it is desired to adjust the straightedge, if the adjustment be inthe direction of the arrow, Fig. 3, the pawls will slip over the teethin the racks E E; but if it be desired to adjust the straight-edge inthe opposite direction the lever f is depressed to free the pawls fromthe racks E E. A projection, 71, at one end of the bed of the frame Bhas a straight inner edge, against which and along the inner edges ofthe guide-pieces F F the glass is placed to be cut, asindicated bydotted lines in Fig. 1.

Graduation-marks c e are formed in each of the guidepieces F F, and theteeth of the racks E E are so cut as to correspond with thesegraduations, in order that the straightedge A may be adjusted by theoperator to any desired measurement, and be held firm by these rackswhile the glass is cut.

\Vc claim as onr invention- 1. The combination of a glass-cutting frameor table having guideways on opposite sides with a straight-edge havingerosspieces at each end adapted to traverse on said ways, substantiallyas set forth.

2. The combination of a glass-cutting frame or table with astraight-edge, A, and toothed retaining-racks E E, and pawls,substantially as set forth.

3. The combination of aglass-cutting frame or table with astraight-edge, A, graduated side pieces, F F, racks E E, and pawls, asand for the purposes substantially as set forth.

4. The combination of a glass-cutting frame or table with astraight-edge, A, rod D, carrying pawls, and a lever, f, a spring, 9,and racks E E, substantially as and for the purposes specified.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

FRANCIS \VOERNER. SAMUEL E. NIES.

Witnesses:

CHARLES F. HELLER, WM. A. H. SCHMEHL.

